IC695MDL753 32-Channel 24VDC Sourcing Output Module

When 32 Outputs Must Fire in Sequence

A packaging line retrofit required 32 discrete actuators to fire in precise sequence. The existing relay output module consumed excessive panel space and generated heat that degraded nearby components. The engineering team needed a high-density, low-loss output solution that fit the existing PACSystems RX3i rack. The IC695MDL753 solved this challenge by providing 32 sourcing transistor outputs in a single module slot.

IC695MDL753 Technical Specifications

This module uses sourcing (PNP) transistor outputs to switch 24 V DC loads. Each channel carries up to 0.5 A. The backplane draws 5 V DC for internal logic. Ambient operating temperature spans 0 to +60°C, while storage temperature ranges from -40 to +85°C. Relative humidity tolerance is 5 to 95% non-condensing. The IP20 rating suits clean cabinet environments. Dimensions measure approximately 178 × 127 × 51 mm. Weight is not available in current documentation.

Why Sourcing Transistor Outputs Matter

Sourcing outputs connect the load to the positive supply rail. This configuration suits PLC systems where the common return path is already established. Transistor outputs switch faster than mechanical relays. They also eliminate contact wear, which reduces maintenance intervals. The 0.5 A per-channel rating handles most pilot devices, small solenoids, and indicator lamps directly. For loads exceeding this rating, an interposing relay is required.

Integration with PACSystems RX3i

The IC695MDL753 installs directly into any PACSystems RX3i backplane slot. The module communicates through the backplane bus, drawing 5 V DC for logic operations. No external power supply is needed for the logic side. Field wiring connects to the front-panel terminals. Verify that the 24 V DC field supply meets the ±15% tolerance before commissioning. Confirm that total module current does not exceed the backplane power budget.

Environmental and Installation Notes

Mount the module in a clean, dry enclosure rated IP20 or better. Maintain ambient temperature between 0 and +60°C. Avoid condensing humidity conditions. Allow adequate clearance for airflow. Follow the manufacturer's wiring diagrams for terminal assignments. Do not exceed 0.5 A per channel. For inductive loads, install suppression diodes to protect the output transistors.